Decay of pseudoscalars into lepton pairs and large-Nc QCD

Details Decay of pseudoscalars into lepton pairs and large-Nc QCD Decay of pseudoscalars into lepton pairs and large-Nc QCD

1999-08-06

arxiv.org/abs/hep-ph/9908283v1

Phys.Rev.Lett.83:5230-5233,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.83.5230

The counterterm combination that describes the decay of pseudoscalar mesons
into charged lepton pairs at lowest order in chiral perturbation theory is
considered within the framework of QCD in the limit of a large number of
colours Nc. When further restricted to the lowest meson dominance approximation
to large-Nc QCD, our results agree well with the available experimental data.

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